newman



I. NEWMAN.

TOOL FOR CAPPING CANS.

APPLICATION FILED NOV. 1. 1919.

Patented Mar. 1, 1921.

flare/Z641. f/V'ewm an.

UNITED STATES orrice.

'JLOOL FOR GAIPING CANS.

Specification of Letters Patent.

Patented Mar. 1, 1921.

Application filed November 1, 1919. Serial No. 334,907.

To all whom it may concern:

Be it known that I, ISIDOR NEWMAN, a citizen of the United States, andresident of New York city, borough of Manhattan, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Tools for Capping Cans, of which the followingis aspecification.

In Letters Patent granted to me on May 14, 1918, No. 1,266,519, I havedisclosed a tool for capping. cans wherein rolls fitting within a capare expanded outwardly to spin the cap within the neck of a can, andother rolls rotate on the transverse flange of. the cap to spin thelatter. over the neck, and in my application for Letters Patent 7 filedSept. 26, 1919 for tool for capping cans,

Serial No. 326,641, I have disclosed a tool having certain improvementsupon the class of tools disclosed in my said Letters Patent whereinouter rollers arecaused to move inwardly during the spinning of theaforesaid flange while inner rolls move outwardly to spin the cap withinthe can neck.

My present invention relates to improve ments in the .class of toolsabove set forth, and is articularly adapted for spinning the outer angeportion of the caps upon the neck of cans without spinning the capitself within the neck, my improved tool having a head to fit upon orwithin the cap to retain the latter in position on the can neck and oneor more outer rollers operative upon the cap flange or margin to spin itagainst and under the head or rim on the can neck while the toolrotates. In the example illustrated in the accompanying drawings theaforesaid head remains in non-rotative contact with the can cap whilethetool with its rollers rotate around said head and the rollers rotate onupwardly disposed axes carried by laterally movable arms operating tomove the peripheries of said roller laterally against a flange of a cap.

- My invention comprises novel details of improvement and combinationsof parts that will be more fully hereinafter set forth and then pointedout in the claims.

Reference is had to the accompanying drawings forming part hereofwherein-- -Figure 1 is a side view of a tool for capping or seaming cansembodying my improvements;

Fig. 2 is a vertical section substantially on the line 22 in Fig. 1;

Fig. 3 is a section substantially on the l1ne 33 in Fig. 1;

F g. 41 is an enlarged detail section;

:Fig. 5 is a section on the line 5-5 in Fig. 4.

Similar numerals of reference indicate correspondlng parts in theseveral views.

body 1 is'provided with a bore 2 in whloh a plunger 3 is slidablyfitted, and said plunger is shown guided in a threaded plug 4 screwedinto a threaded bore in the under surface of body 1, which plug may beretamed in set position by a screw 5 (Fig. 1) bearlng against said plug.The plunger 3 has a stop or flange 3 at its upper end (Fig. 2). adaptedto be pushed against the plug 4 by means of a spring 6. Said spring isshown located in a bore 7 in plunger 3 and bears at its upper endagainst spindle 8 adapted to be secured to any suitable machine, such asa drill press or to an electric motor for operation of my improved tool.The body 1 is shown provided with a reduced shank 9 having a transverseslot 10 receiving a pin 11 projecting from spindle 8, whereby saidspindle may slide and pin 11 will rotate body 1 with the spindle.Plunger 3 is shown provided with 'a longitudinal groove or keyway 3receiving a key 49, which maybe formed in the bore of plug 4, wherebyplunger 3 will be rotated by said plug and with body 1. The plunger 3 atits lower or outer end is provided with a head 12, shown rotativelyattached to said plunger by means of a screw 13 passing through the headand engaging an inner threaded bore in the end of the spindle. Bypreference a washer 14, which may be of fiber, is interposed between thehead 12 and the end of the plunger 3 to bear against plug 4 to reducefriction and wear when the tool is in operation, (Fig. 2.)

When the tool is in use spring 6 will normally force plunger 3 with itshead 12 outwardly in position to engage a cap 15 to be attached to neck16' of a can or receptacle 16, and when the tool is pushed down to thework the plunger 3 will recede within body 1. In the example of the capand can illustrated the neck 16 is provided with it rolled head or rim16* at its mouth. and cap 15 is provided'with a recessed or curvedflange 15 adapted to fit over the head 16" (Fig. 1), to be spun orseamed thereto (Fig. 4). The cap 15 is shown of the class recessedcentrally at 15, by reason of recessed flange 15*, and the head 12 isshown annularly recessed at 12 along its lower edge to.

in osition to en a e flan 'e 15 of ca) 15 to spin or seam such flangeupon the bead or rim of the neck of the can. The'rollers 20 are shownpivoted upon pins or pivots 21 extending longitudinally into holes inthe ends of arms 17, the rollers 20 being shown journaled withinrecesses 17 at the lower ends of the arms 17. Screws 21 may retain thepins 21. The rollers 20 are preferably grooved peripherally at 20 insuch a manner as to receive flange 15 of cap 15 and cause the ame to bespun or squeezed against and under bead 16 of neck 16*, the rollers 20rotating for such purpose upon upwardly extending pivots. The lower endsof the arms carryingrollers 20' are normally pressed outwardly, whichmay be accomplished by means of springs 22 received in opposing recesses"23, 24L respectively in body land arm 17 (Fig. 2). Upon spindle 8 is acontrolling member 25 for arms 17 which is located between said arms andis downwardly tapering or cone-like at 25? to engage corresponding"tapering edges 17 of said arms to tilt the latter to cause rollers 20to approach the flange of the can cap during operation of the tool. Themember 25 is preferably adjustably secured to spindle 8 by means ofthreads 8 on said spindle receiving a threaded bore 26 in member 25. Themember 25 may be retained in set position on spindle 8 by means of ascrew 27 threaded in said member which may impinge against threads 8 oragainst an-interposed plug 28. By regulating the position of member 25on spindle 8 the extent of movement of arms 17 by said member maybecontrolled to cause rollers 20 tomove toward a can cap to a desiredextent according to the character of the cap and the bead of the canneck. The head 12 may engage therollers 20 to prevent undue inwardpressure of said rollers against the cap in the event ofirregularitiesin the gage of the metal of the cap or the size-of thebead 16 When the tool is suspended by spindle 8 for use the body 1' willhang from the spindle: with arms 17 and rollers 20-spread and withplunger 3 and head 12 projected downwardly, over cap 15 on the can neckbelow.

hen the tool is depressed head 12 will bear upon cap 15 and the plungerwill recede un= til plug 4 encounters washer 1a which stops descent ofbody 1, and the downward pressure of the tool causes head 12 to retainthe cap on the can neck. Continued downward movement of the spindlecauses the controlling member 25 to operate and tilt arms 17 to forcethe rollers 20 against flange 15 of the cap during rotation of the tool,all parts of the tool rotating except head 12. The pressure 01 member 25upon arms 17 causes rollers 20 to roll or spin flange 15 against thebead or rim 16 of the can neck to secure the cap thereto. \Vheu the toolis raised member 25 rises and releases arms 17 to spread the rollersaway from the cap and the plunger is again projected outwardly with head12 ready for a succeeding operation and so on. justment of the plugelwith respect to head 12 the relative positions of the recesses 20 ofrollers 20 with respect to said head and the flange of the cap can becontrolled since engagement of said plug with said head limits movementof the latter and the other parts relatively one to another.

It will be noted that head 12 is pivotally supported centrally in theaxis of body 1 and spindle 8 so that rollers 20 rotate bodily anduniformly around said head. While I have shown three rollers 20 and arms17 adapted to rotate around head 12 it will be understood that the toolmay be provided with one or any desired number of such rollers and arms.

My improvements are simple in construction, rapid and efiicient inoperation, since the tool may be kept in rotation, and it is merelynecessary to place the capped cans beneath the tool and to cause thelatter to descend and rise each time to complete operation of spinningor seaming of the caps upon the can necks.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. A tool of the class described comprising a body, acentral plunger having means to engage a can cap, a roller outside ofthe plunger to engage a flange of the cap, an arm carrying the rollerand pivotally carried between its ends by said body. and a spindleaxially movable in the body and connected with the body to rotate it,said spindle having a controlling member movable with the spindle towardthe body to control the operation of said arm, said member beingrotative on the spindle for adjustment relatively to the arm, and meansto secure said member to the spindle in adjusted position.

2. A tool of the class described comprising a body having a centrallypivotally supported head to engage a can cap, an arm By adpivotallycarried by the body and provided with a roller to engage the flange ofsaid cap, a spindle slidably connected with the body and having meanscooperating with the body for rotating the latter, and a controllingmember adjustably carried by the spindle having a tapering surface tocooperate with said arm to cause the roller to operate upon said flange.

3. A tool of the class described comprising a body having a bore, aplunger slidable in the bore, means to rotate the plunger with the body,said plunger having a head to engage a can cap, a spring normallyforcing the plunger and head outwardly, an arm pivotally carried by thebody and provided with a roller outside of said head to operate upon theflange of a cap, a spindle slidably connected with the body, means torotate the body with the spindle, and means upon the spindle to controlthe arm for moving the roller toward said flange.

4:. A tool of the class described comprising a body having a bore, aplunger slidable in the bore, means to rotate the plunger with the body,said plunger having a head to engage a can cap, a spring normallyforcing the plunger and head outwardly, an arm pivotally carried by thebody and provided with a roller outside of said head to operate upon theflange of a cap, a spindle slidably connected with the body, means to.rotate the body with the spindle, a controlling member adjustablyconnected with the spindle and having a tapering surface to cooperatewith said arm to cause the latter to move the roller toward the capflange.

5. A tool of the class described comprising a body having a plugprovided with a bore, a plun er slidable in said bore, means between t eplug and plunger for rotating the latter by the former, a head pivotallyconnected with the plunger, an arm pivotally carried by the body andhaving a roller out side of said head to engage a flange of a cap, aspindle slidably connected with the body, means to rotate the body withthe spindle, and means upon the spindle cooperative with said arm tocause the latter to move the roller toward said flange.

6. A tool of the class described comprising a body having a plugprovided with a bore, a plunger slidable in said bore, means between theplug and plunger for rotating the latter by the former, a head pivotallyconnected with the plunger, an arm pivotally carried by the body andhaving a roller outside of said head to engage a flange of a cap,aspindle slidably connected with the body, means to rotate the body withthe spindle, and a controlling member adjustably connected with thespindle and having a tapering surface to cooperate with said arms formoving the roller toward said flange.

7. A tool of: the class described comprising a body having an adjustableplug, a plunger slidable in the plug and having means to cooperate witha can cap, a roller outside of the plunger, means to support the rollerto move toward said cap, and means to operate the roller.

Signed at New York in the county of New York and State of New York this31st day of October, A. D. 1919.

ISIDOR NEWMAN.

